Isabel, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Isabel, IL in one place.
A chance of rain showers before 7am, then showers and thunderstorms likely between 7am and 10am, then a chance of showers and thunderstorms between 10am and noon, then showers and thunderstorms likely between noon and 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 77. Southeast wind 6 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Isabel, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 14, 2026 8:23 AM CDT.
The active forecast window currently covers Oct 15 to Oct 20, 2026 for Isabel, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 20, 2026
- Latest sync
- Oct 14, 2026 8:23 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Isabel
Thursday looks like the warmest upcoming period in Isabel at 77 degrees F.
Friday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Friday at about 18 to 23 mph NW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 14, 2026 8:23 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms. Mostly cloudy, with a low around 48. West wind 8 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
A chance of rain showers before 1pm. Partly sunny, with a high near 58. Northwest wind 18 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Patchy frost after 5am. Mostly clear, with a low around 36. North northwest wind 6 to 18 mph, with gusts as high as 26 mph.
Areas of frost before 8am. Sunny, with a high near 60. Northeast wind 1 to 5 mph.
Areas of frost after 5am. Clear, with a low around 36.
Areas of frost before 8am. Sunny, with a high near 69.
Mostly clear, with a low around 43.
Mostly sunny, with a high near 72.
Mostly cloudy, with a low around 46.
Mostly sunny, with a high near 76.
Partly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 15
|
Showers And Thunderstorms Likely
|
77°F |
6 to 9 mph
SE
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms
|
48°F |
8 to 18 mph
W
|
|
Friday
Oct 16
|
Chance Rain Showers
|
58°F |
18 to 23 mph
NW
|
|
Friday Night
Oct 16
|
Mostly Clear then Patchy Frost
|
36°F |
6 to 18 mph
NNW
|
|
Saturday
Oct 17
|
Areas Of Frost then Sunny
|
60°F |
1 to 5 mph
NE
|
|
Saturday Night
Oct 17
|
Clear then Areas Of Frost
|
36°F |
0 to 5 mph
SE
|
|
Sunday
Oct 18
|
Areas Of Frost then Sunny
|
69°F |
5 to 10 mph
S
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
43°F |
7 mph
S
|
|
Monday
Oct 19
|
Mostly Sunny
|
72°F |
8 mph
SSW
|
|
Monday Night
Oct 19
|
Mostly Cloudy
|
46°F |
5 mph
S
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
76°F |
5 mph
SSE
|
|
Tuesday Night
Oct 20
|
Partly Cloudy
|
49°F |
3 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Isabel.